Struct ValidityState 

#[repr(C)]
pub struct ValidityState {
    pub flags: u32,
}

Every constraint one control failed, at once.

A SET and not a single reason, because HTML’s ValidityState is a set: one field can be both too short and out of range, and reporting only the first would make the second appear only after the first was fixed.

A bitset rather than a struct of bools so that appending a reason - the PatternMismatch 11b-i-b added - stays a pure enum append with no change to this type’s layout. The same trade GamepadState::buttons makes.

Fields

flags: u32

Bit n set means the ValidityReason with discriminant n failed. Read it through Self::has rather than by hand.

Implementations

impl ValidityState

pub const fn valid() -> Self

A control that passed every constraint.

pub const fn has(self, reason: ValidityReason) -> bool

Did this control fail reason?

pub const fn is_valid(self) -> bool

Did it pass everything?

pub const fn insert(&mut self, reason: ValidityReason)

Record a failure.

Trait Implementations

impl Clone for ValidityState

fn clone(&self) -> ValidityState

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for ValidityState

impl Debug for ValidityState

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ValidityState

fn default() -> ValidityState

Returns the “default value” for a type.

impl Eq for ValidityState

impl Hash for ValidityState

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for ValidityState

fn cmp(&self, other: &ValidityState) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for ValidityState

fn eq(&self, other: &ValidityState) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl PartialOrd for ValidityState

fn partial_cmp(&self, other: &ValidityState) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for ValidityState